Winding drum speed detection device of tower crane lifting system

Abstract

The utility model discloses a winding drum speed detection device of a tower crane hoisting system, which comprises a hoisting machine winding drum and a controller, a plurality of induction blocks (1) which are annularly and uniformly distributed are arranged on a side plate of the hoisting machine winding drum, and a mounting seat (2) is arranged on one side of the hoisting machine winding drum; a detection seat (3) is arranged on the top face of the installation seat (2), a piezoelectric sensor (4) is arranged on the side face, facing a winding drum of the lifting machine, of the detection seat (3), and the piezoelectric sensor (4) is arranged on one side of the moving path of the induction block (1). And the piezoelectric sensor (4) is electrically connected with the controller. According to the utility model, not only can the detection accuracy be improved, but also the advantages of long service life, high use safety, convenient maintenance and high structural stability are achieved.

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